He said he was "not gonna take anybody's side"
Tickets for the bash are on sale now
It's the latest track from the band's upcoming new album
He was sacked after claims emerged that he had groomed an underage girl online last year
Check out the band's new single below
Megadeth parted ways with Ellefson last year after allegations of grooming emerged against the bassist, who denied the accusations
‘We’ll Be Back’ comes alongside a short film chronicling the origins of Megadeth’s mascot, Vic Rattlehead
"Fuck you – you think we’re stupid?"
"Turn it up, and we’ll see you on the road!"
Marking the first time it will be available since 1984